Dear ALL I have a list of data below 0.80010 0.72299 0.69893 0.99597 0.89200 0.69312 0.73613 1.13559 0.85009 0.85804 0.73324 1.04826 0.84002 1.76330 0.71980 0.89416 0.89450 0.98670 0.83571 0.73833 0.66549 0.93641 0.80418 0.95285 0.76876 0.82588 1.09394 1.00195 1.14976 0.80008 1.11947 1.09484 0.81494 0.68696 0.82364 0.84390 0.71402 0.80293 1.02873 all of them are ninty. Nowaday, i try to find a distribution to fit those data. Firstly, I normalize the data, i.e.. (x-mean(X))/(sd(X)) i utilize the SAS to fit my data. Then i obtain the result below ##------------------------------------------------------------------------------------------------------------- Parameters for Lognormal Distribution
Parameter Symbol Estimate Threshold Theta -1.51062 Scale Zeta 0.237283 Shape Sigma 0.593481 Mean 0.001321 Std Dev 0.982435 ##------------------------------------------------------------------------------------------------------------------- however, i confuse about the threshold parameter.. How to get it? Does it be able to be calculated by R? Thanks a lot...... ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.